<template>
	<view v-if="goodsInfo.goods_name" class="goods-detail-container">
		<!--轮播图区域-->
		<swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" circular="true">
			<swiper-item v-for="(item, i) in goodsInfo.pics" :key="i">
				<image :src="item.pic_big || defaultPic" @click="preview(i)"></image>
			</swiper-item>
		</swiper>
		<!--商品信息区域-->
		<view class="goods-info-box">
			<!--商品价格-->
			<view class="price">￥{{goodsInfo.goods_price}}</view>
			<!--商品信息主体区域-->
			<view class="goods-info-body">
				<!--商品的名字-->
				<view class="goods-name">{{goodsInfo.goods_name}}</view>
				<!--收藏-->
				<view class="favi">
					<uni-icons type="star" size="18" color="gray"></uni-icons>
					<text>收藏</text>
				</view>
			</view>
			<!--运费-->
			<view class="yf">快递：免运费</view>
		</view>
		<rich-text :nodes="goodsInfo.goods_introduce"></rich-text>
		<!-- 商品导航组件 -->
		<view class="goods-nav">
		  <!-- fill 控制右侧按钮的样式 -->
		  <!-- options 左侧按钮的配置项 -->
		  <!-- buttonGroup 右侧按钮的配置项 -->
		  <!-- click 左侧按钮的点击事件处理函数 -->
		  <!-- buttonClick 右侧按钮的点击事件处理函数 -->
		  <uni-goods-nav :fill="true" :options="options" :buttonGroup="buttonGroup" @click="onClick" @buttonClick="buttonClick" />
		</view>
	</view>
</template>

<script>
	import {mapState, mapMutations, mapGetters} from 'vuex'
	export default {
		computed:{
			...mapState('m_cart', []),
			...mapGetters('m_cart', ['total'])
		},
		watch:{
			// total(newVal){
			// 	const findResult = this.options.find(x => x.text === '购物车');
			// 	if(findResult){
			// 		findResult.info = newVal;
			// 	}
			// }
			total:{
				handler(newVal){
					const findResult = this.options.find(x => x.text === '购物车');
					if(findResult){
						findResult.info = newVal;
					}
				},
				immediate:true
			}
		},
		data() {
			return {
				goodsInfo:{},
				//默认图片路径	
				defaultPic: '/static/tv/tv1.jpg',
		  // 左侧按钮组的配置对象
			  options: [{
				icon: 'shop',
				text: '店铺'
			  }, {
				icon: 'cart',
				text: '购物车',
				info: 0
			  }],
			  // 右侧按钮组的配置对象
			  buttonGroup: [{
				  text: '加入购物车',
				  backgroundColor: '#ff0000',
				  color: '#fff'
				},
				{
				  text: '立即购买',
				  backgroundColor: '#ffa200',
				  color: '#fff'
				}
			  ]
			}
		},
		onLoad(options){
			const goods_id = options.goods_id;
			this.getGoodsDetail(goods_id);
		},
		methods: {
			...mapMutations('m_cart', ['addToCart']),
			async  getGoodsDetail(goods_id){
				// 3.1 发起请求
				const { data: res } = await uni.$http.post('/api/shopData.php',
				{
					getType:7,
					goods_id:goods_id
				});
				//加载失败
				if(res.meta.status !== 200) return uni.$showMsg();
				res.data[0].goods_introduce = res.data[0].goods_introduce.replace(/<img /g, "<img style='display:block;' ");
				this.goodsInfo = res.data[0]; 
			},
			preview(i){
				uni.previewImage({
					current:i,
					// urls:this.goodsInfo.pics.map(x => {
					// 	return x.pic_big;
					// })
					urls:[
						'https://iloveyezi.cn/api/images/tv1.jpg',
					'https://iloveyezi.cn/api/images/tv2.jpg',
					'https://iloveyezi.cn/api/images/tv3.jpg'
					]
				})
			},
			onClick(e){
				//console.log(e);
				if(e.content.text === '购物车'){
					uni.switchTab({
						url:'/pages/cart/cart'
					})
				}				
			},
			buttonClick(e){
				//console.log(e)
				if(e.content.text === '加入购物车'){
					//组织商品信息对象
					// { goods_id, goods_name, goods_price, goods_count, goods_small_logo, goods_state }
					const goods = {
						goods_id:this.goodsInfo.goods_id, 
						goods_name:this.goodsInfo.goods_name,
						goods_price:this.goodsInfo.goods_price,
						goods_count:1,
						goods_small_logo:this.goodsInfo.goods_small_logo,
						goods_state:true
					}
					//调用addToCart方法
					this.addToCart(goods);
				}
			}
		}
	}
</script>

<style lang="scss">
swiper{
	height: 750rpx;
	image{
		width: 100%;
		height: 100%;
	}
}
.goods-info-box{
	padding: 10px;
	padding-right: 0;
	.price{
		color:#C00000;
		font-size:18px;
		margin:10px 0;
	}
	.goods-info-body{
		display: flex;
		justify-content: space-between;
		.goods-name{
			font-size:13px;
			margin-right: 10px;
		}
		.favi{
			width:120px;
			font-size:12px;
			display: flex;
			flex-direction: column;
			align-items: center;
			justify-content: center;
			border-left:1px solid #efefef;
			color:gray;
		}
	}
	.yf{
		font-size: 12px;
		color:gray;
		margin:10px 0;
	}
}
.goods-nav{
	position: fixed;
	bottom: 0;
	left: 0;
	width: 100%;
}
.goods-detail-container{
	padding-bottom: 50px;
}
</style>
